Some pictures:

<picture>
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<source media="(min-width: 768px) and (-webkit-min-device-pixel-ratio: 1.25), (min-width: px) and (min-resolution: 120dpi)" sizes="588px" data-srcset="https://static2.cbrimages.com/wp-content/uploads/2018/09/Die-01-cvrA.jpg?q=35&amp;w=588&amp;h=900&amp;fit=crop&amp;dpr=1.5 882w" srcset="https://static2.cbrimages.com/wp-content/uploads/2018/09/Die-01-cvrA.jpg?q=35&amp;w=588&amp;h=900&amp;fit=crop&amp;dpr=1.5 882w">
<source media="(min-width: 768px)" sizes="588px" data-srcset="https://static2.cbrimages.com/wp-content/uploads/2018/09/Die-01-cvrA.jpg?q=35&amp;w=588&amp;h=900&amp;fit=crop 588w" srcset="https://static2.cbrimages.com/wp-content/uploads/2018/09/Die-01-cvrA.jpg?q=35&amp;w=588&amp;h=900&amp;fit=crop 588w">
<source media="(min-width: 481px) and (-webkit-min-device-pixel-ratio: 1.25), (min-width: px) and (min-resolution: 120dpi)" sizes="588px" data-srcset="https://static2.cbrimages.com/wp-content/uploads/2018/09/Die-01-cvrA.jpg?q=35&amp;w=588&amp;h=900&amp;fit=crop&amp;dpr=1.5 882w" srcset="https://static2.cbrimages.com/wp-content/uploads/2018/09/Die-01-cvrA.jpg?q=35&amp;w=588&amp;h=900&amp;fit=crop&amp;dpr=1.5 882w">
<source media="(min-width: 481px)" sizes="588px" data-srcset="https://static2.cbrimages.com/wp-content/uploads/2018/09/Die-01-cvrA.jpg?q=35&amp;w=588&amp;h=900&amp;fit=crop 588w" srcset="https://static2.cbrimages.com/wp-content/uploads/2018/09/Die-01-cvrA.jpg?q=35&amp;w=588&amp;h=900&amp;fit=crop 588w">
<source media="(min-width: 321px) and (-webkit-min-device-pixel-ratio: 1.25), (min-width: px) and (min-resolution: 120dpi)" sizes="450px" data-srcset="https://static2.cbrimages.com/wp-content/uploads/2018/09/Die-01-cvrA.jpg?q=35&amp;w=450&amp;h=688&amp;fit=crop&amp;dpr=1.5 675w" srcset="https://static2.cbrimages.com/wp-content/uploads/2018/09/Die-01-cvrA.jpg?q=35&amp;w=450&amp;h=688&amp;fit=crop&amp;dpr=1.5 675w">
<source media="(min-width: 321px)" sizes="450px" data-srcset="https://static2.cbrimages.com/wp-content/uploads/2018/09/Die-01-cvrA.jpg?q=35&amp;w=450&amp;h=688&amp;fit=crop 450w" srcset="https://static2.cbrimages.com/wp-content/uploads/2018/09/Die-01-cvrA.jpg?q=35&amp;w=450&amp;h=688&amp;fit=crop 450w">
<source media="(min-width: 0px) and (-webkit-min-device-pixel-ratio: 1.25), (min-width: px) and (min-resolution: 120dpi)" sizes="320px" data-srcset="https://static2.cbrimages.com/wp-content/uploads/2018/09/Die-01-cvrA.jpg?q=35&amp;w=320&amp;h=489&amp;fit=crop&amp;dpr=1.5 480w" srcset="https://static2.cbrimages.com/wp-content/uploads/2018/09/Die-01-cvrA.jpg?q=35&amp;w=320&amp;h=489&amp;fit=crop&amp;dpr=1.5 480w">
<source media="(min-width: 0px)" sizes="320px" data-srcset="https://static2.cbrimages.com/wp-content/uploads/2018/09/Die-01-cvrA.jpg?q=35&amp;w=320&amp;h=489&amp;fit=crop 320w" srcset="https://static2.cbrimages.com/wp-content/uploads/2018/09/Die-01-cvrA.jpg?q=35&amp;w=320&amp;h=489&amp;fit=crop 320w">
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<img class=" lazyloaded" title="" alt="" id="img-id-0">
</picture>

<picture>
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<source media="(min-width: 768px) and (-webkit-min-device-pixel-ratio: 1.25), (min-width: px) and (min-resolution: 120dpi)" sizes="588px" data-srcset="https://static2.cbrimages.com/wp-content/uploads/2018/09/Die-01-cvrA.jpg?q=35&amp;w=588&amp;h=900&amp;fit=crop&amp;dpr=1.5 882w" srcset="https://static2.cbrimages.com/wp-content/uploads/2018/09/Die-01-cvrA.jpg?q=35&amp;w=588&amp;h=900&amp;fit=crop&amp;dpr=1.5 882w">
<source media="(min-width: 768px)" sizes="588px" data-srcset="https://static2.cbrimages.com/wp-content/uploads/2018/09/Die-01-cvrA.jpg?q=35&amp;w=588&amp;h=900&amp;fit=crop 588w" srcset="https://static2.cbrimages.com/wp-content/uploads/2018/09/Die-01-cvrA.jpg?q=35&amp;w=588&amp;h=900&amp;fit=crop 588w">
<source media="(min-width: 481px) and (-webkit-min-device-pixel-ratio: 1.25), (min-width: px) and (min-resolution: 120dpi)" sizes="588px" data-srcset="https://static2.cbrimages.com/wp-content/uploads/2018/09/Die-01-cvrA.jpg?q=35&amp;w=588&amp;h=900&amp;fit=crop&amp;dpr=1.5 882w" srcset="https://static2.cbrimages.com/wp-content/uploads/2018/09/Die-01-cvrA.jpg?q=35&amp;w=588&amp;h=900&amp;fit=crop&amp;dpr=1.5 882w">
<source media="(min-width: 481px)" sizes="588px" data-srcset="https://static2.cbrimages.com/wp-content/uploads/2018/09/Die-01-cvrA.jpg?q=35&amp;w=588&amp;h=900&amp;fit=crop 588w" srcset="https://static2.cbrimages.com/wp-content/uploads/2018/09/Die-01-cvrA.jpg?q=35&amp;w=588&amp;h=900&amp;fit=crop 588w">
<source media="(min-width: 321px) and (-webkit-min-device-pixel-ratio: 1.25), (min-width: px) and (min-resolution: 120dpi)" sizes="450px" data-srcset="https://static2.cbrimages.com/wp-content/uploads/2018/09/Die-01-cvrA.jpg?q=35&amp;w=450&amp;h=688&amp;fit=crop&amp;dpr=1.5 675w" srcset="https://static2.cbrimages.com/wp-content/uploads/2018/09/Die-01-cvrA.jpg?q=35&amp;w=450&amp;h=688&amp;fit=crop&amp;dpr=1.5 675w">
<source media="(min-width: 321px)" sizes="450px" data-srcset="https://static2.cbrimages.com/wp-content/uploads/2018/09/Die-01-cvrA.jpg?q=35&amp;w=450&amp;h=688&amp;fit=crop 450w" srcset="https://static2.cbrimages.com/wp-content/uploads/2018/09/Die-01-cvrA.jpg?q=35&amp;w=450&amp;h=688&amp;fit=crop 450w">
<source media="(min-width: 0px) and (-webkit-min-device-pixel-ratio: 1.25), (min-width: px) and (min-resolution: 120dpi)" sizes="320px" data-srcset="https://static2.cbrimages.com/wp-content/uploads/2018/09/Die-01-cvrA.jpg?q=35&amp;w=320&amp;h=489&amp;fit=crop&amp;dpr=1.5 480w" srcset="https://static2.cbrimages.com/wp-content/uploads/2018/09/Die-01-cvrA.jpg?q=35&amp;w=320&amp;h=489&amp;fit=crop&amp;dpr=1.5 480w">
<source media="(min-width: 0px)" sizes="320px" data-srcset="https://static2.cbrimages.com/wp-content/uploads/2018/09/Die-01-cvrA.jpg?q=35&amp;w=320&amp;h=489&amp;fit=crop 320w" srcset="https://static2.cbrimages.com/wp-content/uploads/2018/09/Die-01-cvrA.jpg?q=35&amp;w=320&amp;h=489&amp;fit=crop 320w">
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<img class=" lazyloaded" title="" alt="" id="img-id-0" src="http://example.com/test.gif">
</picture>